Composite roofing.



R. ANDERSON e W. E. MOLTZ. COMPOSITE ROOHNG.

APPLICATION FILED DBO. 8, 1909.

984,5 1 8. Patented Feb. 14, 1911.

ltima? ROY ANDERSON AND WILLIAM E. MOLTZ, y0F CHARLESTON, ILLINOIS.

COMPOSITE ROOFING.

Specification of Letters Patent.

Application filed December 6, 1909.

Patented Feb. 14:, 1911.

Serial No. 531,605.

To all whom 'it may concern:

Be it known that we, ROY ANDERSON and VILLIAM E. MOLTZ, citizens of theUnited States, residing at Charleston, in the county of Coles and Stateof Illinois, have invented certain new and useful Improvements inComposite Roofing; and we do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to improvements in plastic roofing compositions.

The object of the invention is to provide a composition of thischaracter adapted to be applied to a roof to form a water and fire proofcovering which Will be light in weight and which will not shrink, expandor crack.

With the foregoing and other objects in View, the invention consists ofcertain novel features of construction, combination and arrangement ofparts, as will be more fully described and particularly pointed out inthe appended claim.

In the accompanying drawings, Figure l is a plan view of a portion of aroof showing the manner of applying our improved rooting composition;Fig. 2 is a cross seetional View of the same.

Our composition consists of the following ingredients combined in theproportions stated, viz

Plaster 80 lbs. Hair lb. Coal tar 2 pints.

Water sufficient to form a stiff mortar.

sheathing strips 2, preferably formed of thoroughly dried soft woodabout four inches wide and provided with a central longitudinal groove3. The strips are laid about one eighth of an inch apart to providespaces l to receive a portion of the coating, this portion forming a key5 to hold the plaster (5 in place, the latter being spread aboutone-half inch thick on the strips. In the valleys of the roof, theplaster is applied about one inch thick and run out one-half inch on thesides of the roof. After the plaster has been thus applied and has driedand hardened the same is preferably given one coat of suitable paint, 7,to protect and prolong the wearing qualities of the plaster.

In preparing this composition, we preferably employ what is known to thetrade as Climax wood plaster and the paint preferably used is known asRubberene7 because of its lasting waterproof qualities.

IVe wish it to he understood that by adding two pints of coal tar afterthe plaster and hair have been mixed together prevents cracking of thecomposition after being applied to the roof. And further, the mixture ofplaster and hair will not stand any more of the coal tar than the amountspecified.

Having thus described our inventio11,\vl1at we claim is :M-

A composite rooting comprising S0 lhs. of plaster and lb. of hair mixedtogether with Water to form a still' mortar, 2 pints of coal tar beingadded to form a binder, said composition after being secured to a roofand hardened having a coating of suitable paint applied thereto.

In testimony whereof we have hereunto set our hands in presence of tivosubscribing witnesses.

ROY ANDERSON. IVILLIAM E. MOLT'J. "Witnesses:

l/VILsoN GOODMAN, ROY I). Gunn.

